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Interlaken

$358+ Cheap flights from Seattle (SEA) to Interlaken, Switzerland

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/5. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — ZRH
Feb 4 — Feb 111
Tue 2/4
Tue 2/11
1 adult, Economy
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The best prices from Seattle/Tacoma Intl to Interlaken are usually found in November or January, booked 8 days in advance, depart on a Saturday or Thursday and return on a Sunday

Cheap flight deals from Seattle to Interlaken

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Interlaken (IN9). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 30, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$503
(Gotogate)

One-way from

$358
(oojo)

Popular in

June

Cheapest in

November

Average price

$595
Provider with most accurate pricing for Seattle/Tacoma Intl-Zurich flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Zurich flights.
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From Seattle/Tacoma Intl to Interlaken
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One-way flight from Seattle/Tacoma Intl to Interlaken
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Highest demand for flights based on searches. 21% potential increase in price ($193 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($29 potential savings vs. average RT price).
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Average for round-trip flights in January 2025
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Find flight deals from Seattle to Interlaken

Cheapest flights from Seattle to Interlaken
Explore the most affordable flight options available from Seattle to Interlaken. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 30, 2025.

This Booking.com deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/93:05 pmSEA - ZRH
2 stops35h 20mAir Canada
Mon 3/241:20 pmZRH - SEA
1 stop16h 10mAir Canada
Deal found 1/28$502
This Gotogate deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/193:05 pmSEA - ZRH
2 stops15h 40mMultiple Airlines
Wed 3/261:20 pmZRH - SEA
1 stop16h 10mMultiple Airlines
Deal found 1/30$506
This Delta deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/277:10 amSEA - ZRH
1 stop18h 20mDelta
Wed 3/51:30 pmZRH - SEA
1 stop17h 55mDelta
Deal found 1/28$509
This American Airlines deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/271:33 pmSEA - ZRH
2 stops16h 57mAmerican Airlines
Mon 3/310:15 amZRH - SEA
1 stop20h 54mAmerican Airlines
Deal found 1/28$511
This Kiwi.com deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/2712:37 pmSEA - ZRH
1 stop17h 53mSWISS
Tue 3/41:10 pmZRH - SEA
1 stop18h 32mSWISS
Deal found 1/28$519
This United Airlines deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/96:15 amSEA - ZRH
1 stop25h 00mUnited Airlines
Mon 3/241:20 pmZRH - SEA
3 stops37h 59mUnited Airlines
Deal found 1/28$522
This oojo deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/191:33 pmSEA - ZRH
2 stops17h 12mBritish Airways
Thu 2/2712:45 pmZRH - SEA
1 stop13h 10mBritish Airways
Deal found 1/29$525
This FlightHub deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/213:45 pmSEA - ZRH
1 stop12h 20mIcelandair
Sun 5/42:00 pmZRH - SEA
1 stop15h 40mIcelandair
Deal found 1/30$574
This KLM deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/1711:15 amSEA - ZRH
2 stops15h 35mKLM
Sun 3/307:25 pmZRH - SEA
1 stop25h 20mKLM
Deal found 1/29$623
This KAYAK deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/22:15 pmSEA - ZRH
2 stops16h 55mLufthansa
Fri 4/118:15 amZRH - SEA
1 stop13h 10mLufthansa
Deal found 1/30$640

Find flights from Seattle to Interlaken within your budget

Customize your flight search to find flights from Seattle to Interlaken that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 30, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

SeattleZurich

SEA - ZRH

SEAZRH

Seattle/Tacoma Intl

Sun 3/9

3:05 pm-10:25 am

2 stops35h 20m

Zurich

Mon 3/24

1:20 pm-9:30 pm

1 stop16h 10m

$502

SeattleZurich

SEA - ZRH

SEAZRH

Seattle/Tacoma Intl

Wed 3/19

3:05 pm-2:45 pm

2 stops15h 40m

Zurich

Wed 3/26

1:20 pm-9:30 pm

1 stop16h 10m

$506

SeattleZurich

SEA - ZRH

SEAZRH

Seattle/Tacoma Intl

Thu 2/27

7:10 am-10:30 am

1 stop18h 20m

Zurich

Wed 3/5

1:30 pm-10:25 pm

1 stop17h 55m

$509

SeattleZurich

SEA - ZRH

SEAZRH

Seattle/Tacoma Intl

Thu 2/27

1:33 pm-3:30 pm

2 stops16h 57m

Zurich

Mon 3/3

10:15 am-10:09 pm

1 stop20h 54m

$511

SeattleZurich

SEA - ZRH

SEAZRH

Seattle/Tacoma Intl

Thu 2/27

12:37 pm-3:30 pm

1 stop17h 53m

Zurich

Tue 3/4

1:10 pm-10:42 pm

1 stop18h 32m

$519

SeattleZurich

SEA - ZRH

SEAZRH

Seattle/Tacoma Intl

Sun 3/9

6:15 am-3:15 pm

1 stop25h 00m

Zurich

Mon 3/24

1:20 pm-7:19 pm

3 stops37h 59m

$522

SeattleZurich

SEA - ZRH

SEAZRH

Seattle/Tacoma Intl

Wed 2/19

1:33 pm-3:45 pm

2 stops17h 12m

Zurich

Thu 2/27

12:45 pm-4:55 pm

1 stop13h 10m

$525

SeattleZurich

SEA - ZRH

SEAZRH

Seattle/Tacoma Intl

Sun 2/23

8:00 pm-7:30 pm

1 stop14h 30m

Zurich

Mon 3/10

11:00 am-7:15 pm

1 stop16h 15m

$571

SeattleZurich

SEA - ZRH

SEAZRH

Seattle/Tacoma Intl

Mon 4/21

3:45 pm-1:05 pm

1 stop12h 20m

Zurich

Sun 5/4

2:00 pm-8:40 pm

1 stop15h 40m

$574

SeattleZurich

SEA - ZRH

SEAZRH

Seattle/Tacoma Intl

Mon 3/17

11:15 am-10:50 am

2 stops15h 35m

Zurich

Sun 3/30

7:25 pm-11:45 am

1 stop25h 20m

$623

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/29

Showing 1-10 of 20 results
1
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Best time to book a flight from Seattle to Interlaken

Have a flexible travel schedule? Discover the best time to fly to Interlaken from Seattle with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Seattle to Interlaken

Get recent, data-driven insights about flights from Seattle to Interlaken including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Seattle to Interlaken?

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Interlaken. Price data was last updated on January 24, 2025.

To ensure you get the cheapest price possible for a flight from Seattle to Interlaken, you should look to book at least 8 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Seattle to Interlaken?

Currently, November is the cheapest month in which you can book a flight from Seattle to Interlaken (average of $637). Flying from Seattle to Interlaken in June is currently the most expensive (average of $1,315). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SEA to IN9?

Find hourly flight availability from Seattle to Interlaken. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 30, 2025.

When flying from Seattle to Interlaken, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What is the cheapest day to fly from Seattle to Interlaken?

Use this chart to determine the cheapest time to fly round-trip from Seattle to Interlaken. Price data was last updated on April 14, 2024.

Travelers seeking maximum savings on their Seattle to Interlaken flight should consider departing on Monday evenings when fares are most often at their lowest. Monday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Interlaken by month

Plan your trip to Interlaken by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Interlaken ranges from 2.5 - 5.0 inches per month. June is typically the wettest month, when rainfall can reach 5.0 in. January is typically the driest time to visit Interlaken when rainfall is around 2.5 in.

Temperature in Interlaken by month

Plan your trip to Interlaken by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Interlaken, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

Reviews of airlines servicing Interlaken

Get insights into the airlines that provide service to Interlaken. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Interlaken. Reviews last updated January 30, 2025.
Peruse reviews from past customers who have flown with Delta, Finnair and SWISS from Seattle to Interlaken to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,450 reviews

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

8.0

Boarding

8.2

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very good
8,450 reviews
Delta
8.0
Very good
8,450 reviews

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

8.0

Boarding

8.2

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Finnair
7.6
Good
1,285 reviews
Delta
8.0
Very good
8,450 reviews

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

8.0

Boarding

8.2

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

SWISS
7.5
Good
1,584 reviews
Delta
8.0
Very good
8,450 reviews

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

8.0

Boarding

8.2

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Air France
7.4
Good
1,475 reviews
Delta
8.0
Very good
8,450 reviews

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

8.0

Boarding

8.2

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines
7.4
Good
8,906 reviews
Delta
8.0
Very good
8,450 reviews

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

8.0

Boarding

8.2

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Interlaken. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Seattle to Interlaken?

    Located just 11.4 mi from the city center, Seattle/Tacoma Intl is the airport most travelers will use when flying to Interlaken from Seattle. Booking flights from Seattle/Tacoma Intl (SEA) to Interlaken should be relatively easy as there are 0 daily outbound flights to Interlaken from 12 different airlines.

  • What are the cheapest airlines to fly from Seattle to Interlaken one-way?

    $358 is the cheapest one-way deal found within the past few days, from TAP AIR PORTUGAL. You may also be able to find cheap deals on Air Canada and SWISS, with prices starting from $383 and $400, respectively.

  • What are the cheapest flights from Seattle to Interlaken?

    On average you can expect to pay $1,288 for a flight from Seattle to Interlaken. The cheapest flight overall is $430 while the most popular route, (Seattle/Tacoma Intl - Zurich) is currently priced at $509.

  • Can I find deals for flights from Seattle to Interlaken that include hotel bookings?

    Yes. In addition to deals on Seattle to Interlaken flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Interlaken?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Interlaken.

  • Can I find deals for business class flights from Seattle to Interlaken?

    Yes. Cheapflights offers flight deals from Seattle to Interlaken by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Seattle to Interlaken?

    Currently, November is the cheapest month in which you can book a flight from Seattle to Interlaken (average of $637). Flying from Seattle to Interlaken in June is currently the most expensive (average of $1,315). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top 10 airlines flying from Seattle to Interlaken

Discover the top 10 airlines that operate flights from Seattle to Interlaken. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$406Average$682FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$443Average$638FlexibilityNo cancel feeOn-time70%
Aer LingusCheapest$457Average$880FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$486Average$603FlexibilityNo cancel feeOn-time71%
LufthansaCheapest$494Average$706FlexibilityNo cancel feeOn-time76%
Air FranceCheapest$502Average$892FlexibilityNo cancel feeOn-time77%
DeltaCheapest$510Average$838FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$529Average$723FlexibilityNo cancel feeOn-time69%
KLMCheapest$555Average$793FlexibilityNo cancel feeOn-time75%
Air CanadaCheapest$560Average$788FlexibilityNo cancel feeOn-time67%
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